﻿//------------------------------------------------------------------------------
// <copyright company="DMV">
//   Copyright 2014 Ded Medved
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.
// </copyright>
//------------------------------------------------------------------------------

using System.Collections.Generic;
using System.Linq;
using Microsoft.SqlServer.TransactSql.ScriptDom;
using System;

namespace Cheburashka
{

    internal class DeleteStatementForTargetVisitor : TSqlConcreteFragmentVisitor
    {
        public DeleteStatementForTargetVisitor()
        {
            DataModificationTargets = new List<TableReference>();
        }

        public List<TableReference> DataModificationTargets { get; private set; }

        public override void ExplicitVisit(DeleteSpecification node)
        {
            if (SqlCheck.HasFromClause(node))
            {
                DataModificationTargets.Add(node.Target);
            }
        }
    }
}